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93428105 = 518685621
BaseRepresentation
bin1011001000110…
…01100110001001
320111210122021012
411210121212021
5142404144410
613134253305
72213061101
oct544314611
9214718235
1093428105
1148812a11
1227357235
1316482404
14c5a0201
158307605
hex5919989

93428105 has 4 divisors (see below), whose sum is σ = 112113732. Its totient is φ = 74742480.

The previous prime is 93428087. The next prime is 93428113. The reversal of 93428105 is 50182439.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43414921 + 50013184 = 6589^2 + 7072^2 .

It is a de Polignac number, because none of the positive numbers 2k-93428105 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9342806 + ... + 9342815.

It is an arithmetic number, because the mean of its divisors is an integer number (28028433).

Almost surely, 293428105 is an apocalyptic number.

It is an amenable number.

93428105 is a deficient number, since it is larger than the sum of its proper divisors (18685627).

93428105 is a wasteful number, since it uses less digits than its factorization.

93428105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18685626.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 93428105 is about 9665.8214860404. The cubic root of 93428105 is about 453.7596213053.

The spelling of 93428105 in words is "ninety-three million, four hundred twenty-eight thousand, one hundred five".

Divisors: 1 5 18685621 93428105